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Jan vs Sidekick: catalog facts
Jan	Sidekick
Free Free and open source. Using a third-party cloud model through Jan costs whatever that…	Free Free to download from GitHub.
Windows, macOS, Linux	macOS
Runs fully offline on your own computer when you want it to Same interface for local models and for OpenAI, Anthropic, Google, Mistral and others	Native macOS interface Answers using your own files, folders and websites
Still pre-1.0 and moving fast; features appear and change between releases Adding a cloud provider means putting that provider’s API key into the app	macOS only Answer quality depends on the local model and your hardware
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.